Nechemia - was the mitzva of sukka forgotten?thanks. what about "And they found written in the Torah that the Lord had commanded by the hand of Moses that the Children of Israel dwell in booths on the festival in the seventh month" which implies it was forgotten

Accuracy of Torah Text95% of 300,000 letters is quite alot. isnt that only for the isaiah scroll? i heard all the torah scrolls in the world are identical except for the yemenite ones which differ by 9 letters.